URGENT -.mq5 projects change to .mq4 by themselves and get corrupted

[OntradingX]

It happened today, but this happened a few times before, some .mq5 projects simply turn into .mq4 and become unusable, luckily I have a .mq5 file from last month and I'm going to have a lot of work to do because I made several updates to there to here. So I suggest you always do a Backup as this also happened when we lost several files on the platform, hopefully the same thing doesn't happen again.
I'm going to have to rescue my backup file, if I hadn't made a backup I would have a huge problem.

@fxDreema Please check if you have any solution for this problem which is very serious.

[jstap]

Judging by the missing names in blocks, my guess is that the browser you are using isn't that compatible. MT5 has never changed to MT4 with me

[OntradingX]

@jstap I've only been using Google Chrome for years.

[jstap]

Chrome should work, maybe try clearing Cheche

[Byens]

Maybe update your browser

[OntradingX]

After countless attempts I managed to solve the problem by returning the project to a previous state.
I clicked on "History" in the corner of the screen and selected one of the previous periods, the project immediately returned from .mq4 to .mq5 and then started working again.