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I have this kind of problem too.After the last update of X-Plane 11 done on december 11th, the program does not start anymore and shows the following message:"There was a problem processing at GLSL pixel shader.You may need to rerun the installer or update your graphics drivers "."Resources / shaders / legacy.gls"; the latter repeated twice.
I reran the installer, but nothing varied. Then I have updated the graphics card driver which is: GEFORCE GTX 1050TI (a fairly powerful card. It meets the minimum necessary requirements).Please note that the card before the last update of X-Plane 11 worked very well.Also, if I start the program immediately after the upgrade it works, but if I close it and then I open it again it does not work anymore and shows me the message above.
If I uninstall X-Plane completely, can I do a new installation with the same SN? Can I hope that this will work again?
Anyway this is my Log file:
Hello jroberts, I'm sorry, but, to well expose the anomaly, I'm obliged not to be too concise.I can assure you that there are no other X-Plane 11 installations on my computer.In addition, the Log file, compiled by the program when I choose the "Fly now" option from the installer menu, reports the following: "log.txt for X-Plane 11.10r3 (build 111014 64-bit) compiled on Dec 5 2017 11: 31:47X-Plane started on Wed Dec 13 11:31:07 2017 ".I must add that when I start the program from the Fly Now option of the installer, the following message appears on the 3D screen of the aircraft: "XP BETAS NOT SUPPORTED.PLEASE USE STABLE VERSION".
But if I start X-Plane 11 according to the normal procedure, it stops immediately and the message "There was a problem processing at GLSL pixel shader ... etc." and the related Log file, actually returns to register the X-Plane version 11.05. As if the update was not saved.
I do not understand, I just upgraded the software when at the opening of X-Plane 11 the message came out that there was an update I could download.I hope that what I reported can be useful to discover the cause of the problem.I enclose the two Log files: the one generated by the Fly Now option of the installer and the one obtained after the next opening of the program through the normal procedure.Thanks so much
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